Weft-replenishing loom



.1. T. MALLOY WEFT REPLENISHING LOOM Flled Feb 23 1927 March 13, 1928.

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Patented Mar. 13, 1928.

UNITED. STATES 1 1,662,198 PATENT OFFICE.

JAMES T. MALLOY, OF OAKLAND, RHODE ISLAND, ASSIGNOR, BY MESNE ASSIGN-MEN'IS, T0 DRAPER CORPORATION, OF HOPEDALE, MASSACEUSETTS,'A CORPORA-TION O13 BLAINE.

WEFT-REPLENISHING LOOM.

Application filed February 23, 192?. seria ize. 170,144

The present invention relates to an in1- provement in weft replenishingloom-s.

In weft replenisl'iing looms of the feeler controlled type, the loom isprovided with a teeler on one side of the warp which feels of the yarnin the shuttle and operates ,to cause weft replenishment upon apredetermined exhaustion of the filling on the bobbin. The hopper ormagazine is located on the opposite end of the loom from the teeler, andwhen a new bobbin is inserted in the shuttle the thread extending fromthe selvage to the exhausted bobbin is severed by the temple threadcutter located on that side of the loom. it the same time the shuttlefeeler thread cutter moves rearward with the shuttle i'eeler, and itsmite and clamp are opened during the rearward movement. It then operatesto clamp the thread extending from it to the temple thread cutter, andto cut the thread extending from it to the discharged bobbin so that thebobbin in falling from the shuttle may draw its thread out of the eye ofthe shuttle. The shuttle teeler thread cutter and clamp holds one end ofthis piece of thread extending from it to the temple thread cutter, andafter the insertion of a new bobbin this shuttle teeler thread cutterand clamp retreats and continues to hold this piece of thread. It hasbeen observed that sometimes this piece of thread will continue to beheld by the-shuttle feeler thread cutter and clamp until the nextrcplenishment and when the shuttle :fceler thread cutter and clamp isopened on its rearward movement to feel for the shuttle and cut andclamp the thread then being exhausted from the shuttle, the piece ofthread being carried backward by the shuttle .fEBlQI is caught in thelay and is carried into the shed on the next shot of the shuttle.

The object of the present invention is to prevent this accidentaldrawing into the cloth of pieces of thread from the shuttle feelerthread cutter and clamp. and to this end provision is made for openingthe shut tle feeler thread cutter and clamp after it has retreated fromits clamping and cutting operation. The invention consists in theconstruction hereinafter described and particularly defined in theclaims.

In the accompanying drawings illustrating the referred form of theinvention, Fig. 1 is a cross-section of the breast beam of a loomshowing the shuttle feelcr thread cutter and clamp, the temple threadcutter and the connections between; and Fig. 2 is a rear elevation of aportion of the breast beam of a loom showing the shape and mode ofsupport of the connection between the temple thread cutter and theshuttle feeler thread cutter and clamp. d a The illustrated embodimentof the inventlon is described as follows: The loom is a weftreplenishing loom of the feeler controlled type provided on itsright-hand end with a hopper indicated in a general Way by the referencecharacter 10. The breast beam 11 occupies the position shown in Fig. 1with respect to the hopper 10. The shuttle ileeler thread cutterandclamp is indicated in a general way by the reference character 12.The temple thread cutter 13 is shown in outline, the hidden parts beingillustrated in dash and dot linesyand the remainder of the temple andassociated parts are omitted for the purpose of clearness. On the rearside of the breast beam .11 is supported the connection 14 between thetemple thread cutter 18 and the shuttle feeler thread cutter and clamp1:2. This connection 1 L consists of a piece of wire, shown in elevationin Fig. 2. The straight portion or body of the wire is pivotally mountedon the ears 15 secured on the rear side of the breast beam. At one endthe upright arm 16 of the connectionextends from the adjacentearupwardly, and has its on d in position to engage the finger or tailli-1 upon the front end of the striker Upon the opposite endof theconnection 1% is provided an arm 17,

which extends downwardly and rearwardly from the adjacent ear 15 andcarries upon its end the pin 18 which extends into the path of motion ofthe tail 19 of the temple thread cutter 13. i i

The shuttle feeler thread cutter and clamp is constructed and operatesas illustrated and described in the Northrop Patent No. 1,515,515,dated'November 11,1924. 'In the operation ofsuch shuttle feeler threadcutter and clamp, the clamp remains closed after it has seized thethread and severed it while in its rearward position. The normalmode ofoperation, therefore, of the loom is not interfered with except to theextent indicated movement of the shuttle feeler thread cutter and clamp,the clamp moves forward and retains its hold upon the thread extendingfrom the clamp to the temple. Then the device above described,consisting of the connection between the shuttle feeler thread cutterand clamp and the temple thread cutter, operates gradually to open theclamp, sufiicient time being permitted to allow the temple thread cuttersurely to cut the thread before the clamp of the shuttle feeler threadcutter and clamp has released its held end.

A complete description of the operation of the device is as follows: Inthe operation of the loom when the fecler indicates critical exhaustion,it causes the change shaft to be operated to cause the hopper to inserta fresh bobbin in the shuttle. Upon the beat of the lay on which thechange occurs, the shuttle feeler swings rearwardly to make its feelingmovement as the lay moves forward. During the rearward movement of theshuttle feeler the shuttle fceler thread cutter and clamp is openedwide, and assuming the proper boxing of the shuttle, the shuttle feelerengages the outgoing thread near the shuttle and then as the laycompletes its forward movement it causes the shuttle feeler threadcutter and clamp to sever the thread and to clamp the end thereof andhold it. The transfer being completed, the end of the weft held by theshuttle feeler thread clamp extending to the sclvage moves forward andcontinues temporarily to hold such thread end. Presently the other endof this piece of thread is cutby the temple thread cutter. Then thepiece of thread held by the shuttle feeler thread clamp is held only bythe thread clamp, previous to which it was held by the clamp and thecloth. \Vith each beat of the lay the temple thread cutter is operatedby the engagen'ient of the lay with the tail of the cutter, and thelatter oscillates the connecting wire, causing the distant end thereofat each forward beat of the lay gently to strike the tail of the shuttlefeeler thread cutter and clamp. As a result of several beats ot the laythese little blows of the connecting wire gradually open the shuttlefeeler thread clamp until finally it releases the piece of thread heldthereby and the piece of thread is permitted to fall out of the waywithout possibility of its being caught by the shuttle or shuttle threadand carried into the shed.

Vhile it is preferred to actuate the shuttle feeler thread clamp by themeans described to open it after it has caught the thread from theoutgoing bobbin, and while itstill holds it in forward position from thetemple thread cutter, it is apparent that other means may be employedgradually to open the shuttle feeler thread clamp in the mannerdescribed. The present construction is preferred because of thecontiguous position of the temple thread cutter and the convenience ofactuating the shuttle fccler thread clamp therefrom.

Haring thus described the invention, what is claimed is:

l. A. weftreplenishing loom of the lilling feeler type having, incombination a shuttle feeler provided with a thread cutter and clamp,means for closing the cutter and clamp on the forward beat of the layupon replenishment to cut and clamp the thread extending from the cutterand clamp to the selvage, and means for delivering a series of lightblows to the shuttle feelcr thread clamp to open it gradually after afew heat-L ol' the lay subsequent to replenishment.

A weft replenishing loom as defined in claim 1, provided with a templethread cutter actuated by the lay, and a connecting device between thetemple thread cuttc and the shuttle feeler thread cutter and clampacting to gradually open the shuttle i'cclcr thread clamp a sutlicientlyloin, time a ttcr replenishment to permit the cutting of the threadfromthe exhausted bobbin by the temple thread cutter before the shuttletech-r thread clamp releases the thread.

3. In a replenishing loom, the comhination of a shuttle feeler providedwith a thread parter and clamp, means for caus ing the parter and clampto part and clamp the thread between the shuttl 2 and cloth sclvage. atemple cutter, and means actuated by the temple cutter to open theparter and clamp when the latter are in from position and after thetemple cutter has parted lhn thread at the cloth selvagc.

at. In a replenishing loom, the combination of a shuttle 'lcelcrprovided with a thread parter and clamp, means for causing the parterand clamp to part and clamp the thread between the shuttle and clothtelva a temple cutter, and means t'onstil'uto-il as a rocking n'ien'lberand actuated by the tem ple cutter to open the parter and clamp when thelatter are in front position and alter the temple cutter has parted thethread at the cloth selvege.

In testimony whereof I have signed my name to this specification.

JAM S 'l. MALLOY.

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